Stress fracture concrete 2 joining rooms ditra? - Tile Advice

[2020Tiling]

Have a kitchen / dinning room floor job, concrete floor. Where archway meets in the middle of the room there is a crack along the whole length from side to side, it's a very faint crack so would I need to ditra over the whole concrete floor as the customer insists on not having a movement joint were the crack is also the crack isn't in a straight line. The floor is uneven and has to be self levelled anyway ,so would a fibre slc not stop the crack from transferring to the tile? Tiles are Granite :smilewinkgrin:

 

[Dontiler]

hello
I would recommend to Ditra the floor, better to be safe then sorry , would be interesting to know if the floor is heated and how big is it, wouldn't risk it just to slc it and tile it

 

[2020Tiling]

Will be a bit price difference adding ditra plus labour. it's not heated and 17 mtrs. I recon I need around 4 bags of slc to make it flat.

 

[Ajax123]

Sounds le the concrete wanted a joint at that point. Ditra is appropriate if there is no vertical movement but if there is vertical movement you will need a joint in the tile face as well

 

[Sean SML Tiling]

If they can afford granite then thdy can afford ditra.

 

[Stef]

This started out as a hairline crack,

This was after two years, it cracked the limestone much earlier than this.
The company were advised at the time to go with Ditra but wouldn't listen.

 

[Sean SML Tiling]

I bet that cost them.

 

[Stef]

I bet that cost them.

Yip, I ripped up 38 tiles & replaced,
They had enough space to put Ditra down but wouldn't pay for it. This will keep me in work for another year or two.

 

[White Room]

Yip, I ripped up 38 tiles & replaced,
They had enough space to put Ditra down but wouldn't pay for it. This will keep me in work for another year or two. 

To replace 38 tiles ???

 

[Sean SML Tiling]

Yip, I ripped up 38 tiles & replaced,
They had enough space to put Ditra down but wouldn't pay for it. This will keep me in work for another year or two.

I bet that will cost them lol

 

[Stef]

[/B]
To replace 38 tiles ???

Take me a year to stick them down Mark!!

There's another few that were cracked but weren't replaced, will catch them in a few months time when I'm sent down to carry out more repairs.

 

[White Room]

Okay Rob:smilewinkgrin:

 

[area tiling]

How do these poured anhydrite and hemi hydrate screeds perform under stress, do small fractures also end up being major cracks ?

 

[Stef]

How do these poured anhydrite and hemi hydrate screeds perform under stress, do small fractures also end up being major cracks ?

I'm not sure, that's a question for Ajax,
On the calcium screeds I have tiled I have noticed very small cracks but only time will tell if they develop into a problem.

 

[Peter]

How do these poured anhydrite and hemi hydrate screeds perform under stress, do small fractures also end up being major cracks ?

Are you getting many of these screeds round your way? Few and far between in Belfast thankfully.